[mythtvnz] Freeview HD and transcoding trouble

[Steven Ellis]

On 3/11/2008, at 12:18 PM, Andrew Walters wrote:

> Hi, this is my first post to the list.
>
> I have a problem transcoding the HD channels.
>
> After a huge amount of time spent on it, I've managed to set up  
> mythtv using both my old WinTV PVR150 (analogue VHF/UHF tuner) and a  
> Nova-T 500 dual DVB-T tuner using Paul's excellent patches on my  
> openSUSE box.
>
> I've got it on my home-office server, with a mythfrontend PC in the  
> lounge.
>
> Unfortunately, the frontend is not up to doing HD well, so I  
> transcode all digital recordings to 768x576 before watching them.
>
> This isn't working so well.
>
> TVOne and TV2 jerk slightly both before and after the transcode  
> (sound is ok, and the jerking seems to be in the recording as it's  
> always in the exact same places when viewing recordings), and TV3  
> plays back at half speed after transcoding (MPEG-4, with audio as  
> MP3 48Kbps).
>
> When watching a transcoded TV3 program and ramping up the playback  
> speed to 2x, the video is perfectly smooth but the audio is still  
> terrible, making it unlistenable.
>
> I see I'm not the first with this TV3 problem (Banksie did you get  
> it to go?)


I'm assuming you are using Myth's built in transcoder?

At the moment the best results i'm seeing are via recent builds of  
Handbrake.

Steve


Steven Ellis - Technical Director
OpenMedia Limited
email   - steven at openmedia.co.nz
website - http://www.openmedia.co.nz

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